8628745 has 8 divisors (see below), whose sum is σ = 10374984. Its totient is φ = 6889344.

The previous prime is 8628727. The next prime is 8628751. The reversal of 8628745 is 5478268.

It can be written as a sum of positive squares in 4 ways, for example, as 166464 + 8462281 = 408^2 + 2909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8628745 - 2⁹ = 8628233 is a prime.

It is a Duffinian number.

8628745 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8628698 and 8628707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1687 + ... + 4483.

It is an arithmetic number, because the mean of its divisors is an integer number (1296873).

Almost surely, 2^8628745 is an apocalyptic number.

It is an amenable number.

8628745 is a deficient number, since it is larger than the sum of its proper divisors (1746239).

8628745 is a wasteful number, since it uses less digits than its factorization.

8628745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419.

The product of its digits is 107520, while the sum is 40.

The square root of 8628745 is about 2937.4725530633. The cubic root of 8628745 is about 205.1079740538.

The spelling of 8628745 in words is "eight million, six hundred twenty-eight thousand, seven hundred forty-five".